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use sp_std::prelude::Vec;

pub trait OperatorProvider<AccountId> {
	// Make sure `who` has permission to feed data
	fn can_feed_data(who: &AccountId) -> bool;

	// return a list of operators
	fn operators() -> Vec<AccountId>;
}

impl<AccountId> OperatorProvider<AccountId> for () {
	fn can_feed_data(_who: &AccountId) -> bool {
		false
	}

	fn operators() -> Vec<AccountId> {
		Vec::new()
	}
}